Cant view my data on thingspeak app

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Eseme Kluivert
Eseme Kluivert 2022-6-24
评论： Christopher Stapels 2022-7-6
I am using an esp-01S Wi-Fi module to send temperature and heartbeat information to the thingspeak app using the AT comand from the arduino my code runs well and it establishes a connection on the serial monitor but i am unable to view the data on the thingspeak app Here is my thingspeak command
void setup() {
lcd.begin(16, 2);
pinMode(blinkPin,OUTPUT); // pin that will blink to your heartbeat!
pinMode(fadePin,OUTPUT); // pin that will fade to your heartbeat!
Serial.begin(115200); // we agree to talk fast!
interruptSetup(); // sets up to read Pulse Sensor signal every 2mS
// IF YOU ARE POWERING The Pulse Sensor AT VOLTAGE LESS THAN THE BOARD VOLTAGE,
// UN-COMMENT THE NEXT LINE AND APPLY THAT VOLTAGE TO THE A-REF PIN
// analogReference(EXTERNAL);
lcd.clear();
lcd.setCursor(0,0);
lcd.print(" Patient Health");
lcd.setCursor(0,1);
lcd.print(" Monitoring ");
delay(4000);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Initializing....");
delay(5000);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Getting Data....");
ser.begin(9600);
ser.println("AT");
delay(1000);
ser.println("AT+GMR");
delay(1000);
ser.println("AT+CWMODE=3");
delay(1000);
ser.println("AT+RST");
delay(5000);
ser.println("AT+CIPMUX=1");
delay(1000);
String cmd="AT+CWJAP=\"Alexahome\",\"98765432\"";
ser.println(cmd);
delay(1000);
ser.println("AT+CIFSR");
delay(1000);
}
void esp_8266() {
// TCP connection AT+CIPSTART=4,"TCP","184.106.153.149",80
String cmd = "AT+CIPSTART=4,\"TCP\",\""; cmd += "184.106.153.149"; // api.thingspeak.com
cmd += "\",80";
ser.println(cmd);
Serial.println(cmd);
if(ser.find("Error")) {
Serial.println("AT+CIPSTART error");
return;
}
String getStr = "GET /update?api_key=";
getStr += apiKey;
getStr +="&field1=";
getStr +=String(temp);
getStr +="&field2=";
getStr +=String(pulse);
getStr += "\r\ end";
// send data
length cmd = "AT+CIPSEND=4,";
cmd += String(getStr.length());
ser.println(cmd);
Serial.println(cmd);
delay(1000);
ser.print(getStr);
Serial.println(getStr);
//thingspeak needs 15 sec delay between updates
delay(3000);
}
Also i tried using the examples on thingspeak to upload a value in the channel but the serial monitor kept showing Error
"wifi shield not present"
  1 个评论
Walter Roberson
Walter Roberson 2022-6-27
Please format your code.
Remove the currently posted version of the code here. Then, in the editor, click on the ">" button in the "CODE" toolstrip immediately above the editor entry window. That will create a code entry region. Paste the formatted code into there.

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回答（1 个）

Vinod
Vinod 2022-6-27
I recommend starting with the example here as a starting point for your code. The ThingSpeak library on Github is to help users get started and I would strongly recommend using that when possible.
  2 个评论
Eseme Kluivert
Eseme Kluivert 2022-7-1
I have tried the examples the serial monitor keeps indicating that the wifi shield is not present
Christopher Stapels
Christopher Stapels 2022-7-6
I think that means you are using the wrong code. You can select the esp8266 via AT commands examples in the library.

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